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V4L/DVB (6194): Changes to support interrupts on VIDB

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Changes to support interrupts on VIDB

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Steven Toth 2007-09-08 14:21:03 -03:00 committed by Mauro Carvalho Chehab
parent ccbe64c664
commit 6f074abb62
1 changed files with 54 additions and 5 deletions
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55
drivers/media/video/cx23885/cx23885-core.c
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@ -1252,20 +1252,23 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id)
struct cx23885_dev *dev = dev_id;
struct cx23885_tsport *port = &dev->ts2;
u32 pci_status, pci_mask;
u32 ts1_status, ts1_mask;
u32 ts2_status, ts2_mask;
int count = 0, handled = 0;
pci_status = cx_read(PCI_INT_STAT);
pci_mask = cx_read(PCI_INT_MSK);
ts1_status = cx_read(VID_B_INT_STAT);
ts1_mask = cx_read(VID_B_INT_MSK);
ts2_status = cx_read(VID_C_INT_STAT);
ts2_mask = cx_read(VID_C_INT_MSK);
if ( (pci_status == 0) && (ts2_status == 0) )
if ( (pci_status == 0) && (ts2_status == 0) && (ts1_status == 0) )
goto out;
count = cx_read(port->reg_gpcnt);
dprintk(7, "pci_status: 0x%08x pci_mask: 0x%08x\n", pci_status, pci_mask );
dprintk(7, "ts1_status: 0x%08x ts1_mask: 0x%08x count: 0x%x\n", ts1_status, ts1_mask, count );
dprintk(7, "ts2_status: 0x%08x ts2_mask: 0x%08x count: 0x%x\n", ts2_status, ts2_mask, count );
if ( (pci_status & PCI_MSK_RISC_RD) ||
@ -1303,6 +1306,48 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id)
}
if ( (ts1_status & VID_B_MSK_OPC_ERR) ||
(ts1_status & VID_B_MSK_BAD_PKT) ||
(ts1_status & VID_B_MSK_SYNC) ||
(ts1_status & VID_B_MSK_OF))
{
if (ts1_status & VID_B_MSK_OPC_ERR)
dprintk(7, " (VID_B_MSK_OPC_ERR 0x%08x)\n", VID_B_MSK_OPC_ERR);
if (ts1_status & VID_B_MSK_BAD_PKT)
dprintk(7, " (VID_B_MSK_BAD_PKT 0x%08x)\n", VID_B_MSK_BAD_PKT);
if (ts1_status & VID_B_MSK_SYNC)
dprintk(7, " (VID_B_MSK_SYNC 0x%08x)\n", VID_B_MSK_SYNC);
if (ts1_status & VID_B_MSK_OF)
dprintk(7, " (VID_B_MSK_OF 0x%08x)\n", VID_B_MSK_OF);
printk(KERN_ERR "%s: mpeg risc op code error\n", dev->name);
cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
cx23885_sram_channel_dump(dev, &dev->sram_channels[ port->sram_chno ]);
} else if (ts1_status & VID_B_MSK_RISCI1) {
dprintk(7, " (RISCI1 0x%08x)\n", VID_B_MSK_RISCI1);
spin_lock(&port->slock);
count = cx_read(port->reg_gpcnt);
cx23885_wakeup(port, &port->mpegq, count);
spin_unlock(&port->slock);
} else if (ts1_status & VID_B_MSK_RISCI2) {
dprintk(7, " (RISCI2 0x%08x)\n", VID_B_MSK_RISCI2);
spin_lock(&port->slock);
cx23885_restart_queue(port, &port->mpegq);
spin_unlock(&port->slock);
}
if (ts1_status) {
cx_write(VID_B_INT_STAT, ts1_status);
handled = 1;
}
if ( (ts2_status & VID_C_MSK_OPC_ERR) ||
(ts2_status & VID_C_MSK_BAD_PKT) ||
(ts2_status & VID_C_MSK_SYNC) ||
@ -1341,9 +1386,13 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id)
}
if (ts2_status) {
cx_write(VID_C_INT_STAT, ts2_status);
cx_write(PCI_INT_STAT, pci_status);
handled = 1;
}
if (handled)
cx_write(PCI_INT_STAT, pci_status);
out:
return IRQ_RETVAL(handled);
}